CN201042042Y - Stb - Google Patents
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- Publication number
- CN201042042Y CN201042042Y CNU200720078760XU CN200720078760U CN201042042Y CN 201042042 Y CN201042042 Y CN 201042042Y CN U200720078760X U CNU200720078760X U CN U200720078760XU CN 200720078760 U CN200720078760 U CN 200720078760U CN 201042042 Y CN201042042 Y CN 201042042Y
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- China
- Prior art keywords
- receiving system
- top box
- iptv
- model
- utility
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to the multimedia technical field, in particular to a multimedia data receiving-decoding device. The utility model discloses a set-top box capable of achieving the functions of receiving ground, cable and satellite digital broadcast except the function of IPTV. The utility model has the technical proposal that the set-top box comprises a control system and an IPTV function unit. The utility model is characterized in that the set-top box also includes a cable TV receiving system, a satellite TV receiving system and a ground TV receiving system, wherein, the cable TV receiving system, the satellite TV receiving system and the ground TV receiving system are connected with the IPTV function unit through the control system. Having the beneficial effects of receiving the digital broadcast from the ground, the cable and the satellite and achieving the function of the IPTV, the utility model has the strong function and low cost.
Description
Technical field
The utility model relates to multimedia technology, and particularly a kind of multi-medium data receives decoding device.
Background technology
Along with the development and the popularization of digital broadcasting technology, digital television broadcasting develops rapidly.Satellite and wired (CABLE) have adopted the standard of European DVB-S and DVB-C respectively, and received terrestrial digital broadcasting then adopts the DMB-TH standard.Owing to adopt digital broadcasting, image, sound quality are all good, but shortcoming is the developing value-added services difficulty.
On the other hand, along with the development of multimedia network technology, IPTV (Web TV) has also obtained development rapidly.Based on broadband network, provide common audio/video on-demand, multicast to the user, and value-added service such as online game, information browse, shopping online, the IPTV set-top box adopt MPEG4, H.264, the decoding algorithm of standards such as AVS, VC-1, the low code stream audio frequency and video that the 2Mbps that can decode is following, the vision signal of output common DVD image quality single-definition image quality.IPTV also is subjected to user's welcome because have interactive and value-added service.
In the prior art, the reception decoding device of above-mentioned media signal mostly is the reception decoding device at the function singleness of signal specific.Recently on the market a kind of dual-mode set-top box appears, can realize IPTV and cabled digital broadcast reception.But can not receive the digital broadcast signal of ground and satellite, realize the reception of multiple signal, the user need dispose plural set-top box, not only uses inconvenience, has also increased cost.
The utility model content
Technical problem to be solved in the utility model just provides and a kind ofly can realize that ground, wired, satellite digital broadcasting receive and the set-top box of IPTV function.
The technical scheme that the utility model solve the technical problem employing is that set-top box comprises control system and IPTV functional unit, it is characterized in that, also comprises wired TV receiving system, satellite television receiving system and terrestrial television receiving system; Described cable TV receiving system, satellite television receiving system and terrestrial television receiving system are connected with the IPTV functional unit by control system;
Further, described control system adopts the SoC chip to constitute;
Concrete, the embedded (SuSE) Linux OS of described control system;
Further, described IPTV functional unit MPEG compatible 4, H.264, AVS, VC-1 decoding standard.
The beneficial effects of the utility model are, can realize that ground, wired, satellite digital broadcasting receive and the IPTV function.Have powerful, the characteristics that cost is low.
Description of drawings
Fig. 1 is the structure chart of embodiment.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
Set-top box of the present utility model adopts powerful SoC (SOC (system on a chip)) chip to constitute control system, has increased the DMB-TH tuner, is used to receive terrestrial television and receives; Increased the DVB-C tuner, be used for cable TV and receive; Increased the DVB-S tuner, be used for satellite television and receive.And increase TS stream selector switch, be used for signal and switch.Above-mentioned parts are connected with the IPTV functional unit by control system (SoC chip).The IPTV functional unit comprises video encoder, audio D/A converter, 10/100M adaptive network controller, infrared remote control receiving processor etc.Operation system of software of the present utility model adopts built-in Linux operating system.The IPTV functional unit can play MPEG4, H.264, the network flow-medium of standards such as VC-1, AVS.The control system that powerful SoC chip is formed, chip architecture adopts MIPS+DSP or ARM+DSP, can realize MPEG2, MPEG4, VC-1, the AVS of single-definition, H.264 wait the decoding video stream of standard.Owing to adopt embedded OS Linux and SoC chip, rather than adopt the computer chip of common x86 framework, removed fan, solved the quiet design problem when the decoding high-definition image, reach the requirement of ordinary electrical home appliance product.
Below respectively the various piece of set-top box is illustrated:
The terrestrial television receiving system is supported MPEG2 standard digital broadcasting decoder;
Cable TV receiving system condition receives the condition of supporting DVB, MULTI2, standards such as 3DES, DES and receives.
The decoding of IP network streaming media video:
System supports MPEG4, VC-1, AVS, H.264 waits the stream media format of standard to decode.
Audio decoder is supported the audio decoder of forms such as MP2, MP3, AAC, WMA, OGG, and sample frequency is supported 32KHz, 44.1KHz, 48KHz, 96KHz etc.
Support procotols such as TCP/IP, UDP, TFTP, FTP, HTTP, support the IP-IGMP multicast protocol, support access controls such as PPPOE, DHCP, static IP to coordinate; Support ISMA1.0/2.0, TS over UDP, TS over RTP, RTP/RTCP/RTSP protocol groups, support network management protocols such as SNMP and TR069.
EPG (electronic program guides) browser:
Adopt built-in browser, support HTML, JAVA Script, SSL2.0/3.0, Http1.1, CSS 1﹠amp; 2, agreement such as Webservice, XML is supported simplified form of Chinese Character, English display, supports the mixed display of literal, picture and video, supports functions such as blink-off, rearrangement, is fit to the common TV terminal and shows.
Support is English, Chinese by the soft keyboard input, and Chinese character coding input method is supported spelling input method etc.
Video/audio is play:
User interface is operated by remote controller or this machine button based on the WEB mode, can realize broadcasts such as broadcast, time-out, F.F., rewind down, location, and can select program to add/subtract function.
The set-top box input port:
The video input: composite video (CVBS) input, PAL/NTSC is optional.
Video output: composite video (CVBS) output, PAL/NTSC is optional; S-VHS output, PAL/NTSC is optional.
Component output: YPbPr is provided output.
Audio frequency input: support the microphone input, monophony or stereo.
Audio frequency output: support to simulate stereo output, and support digital audio S/PDIF output.
Content protecting:
Support the OMA2.0 of OMA company and the DRM of the JANUS of Microsoft company standard.
System is provided with function:
Display system is provided with the interface on the display terminal video screen, by the interface is set relevant parameters such as network, the initialization of this machine is set manually.
Embodiment
Referring to Fig. 1.SoC chip (as the PNX8550 of PHILIPS company) is the core processing part of whole system, and all control, processing are all finished by the SoC chip.The external network controller of SoC chip is realized the visit of network.Resident software program in FLASH memory the inside among the figure, the DDR memory then provides set-top box software operating all temporal datas.The SoC chip will be sent Streaming Media here through unpacking from network, solve video program stream and audio program streams, and pass through software at the SoC chip internal, solve the video data that meets the ITU656 standard, data are sent to video encoder (model is PNX8510 among the figure), weave into composite video signal, S-VHS signal and the component video signal output of simulation, be sent to television set and show.Simultaneously, with the audio program streams decompress(ion), solve audio digital signals, this digital signal is sent to audio D/A converter (model is WM8731L among the figure), through the D/A conversion, the output analogue audio frequency is stereo, is sent to equipment power amplifications such as television set.Infrared receiving processor receives the control signal that Infrared remote controller is sent, and is sent to the SoC chip after treatment and does further processing.The power-supply system (not shown) provides the various power supplys that need for whole system.
A figure medium-high frequency DTT-E2, DTC-C1, DTS-A1 is respectively to DMB-TH, DVB-C, the radiofrequency signal demodulation of DVB-S, demodulate TS stream signal, and be input to TS stream selector switch (constituting) by two 74alvc16245, through selector switch, can select two-way TS stream, be input to the SoC chip, pass through CA module (Conditional Access Module) respectively, after program enforcement deciphering, in the SoC chip, carry out demultiplexing, and the audio/video flow that solves is carried out decompression, formation meets the digital video signal of ITU656 form, output to video encoder, weave into the composite video signal of simulation, S-VHS signal and component video signal output are sent to television set and are shown.Simultaneously, with the audio program streams decompress(ion), solve audio digital signals, this digital signal is sent to audio D/A converter, through the D/A conversion, the output analogue audio frequency is stereo, is sent to equipment power amplifications such as television set.
Claims (4)
1. set-top box comprises control system and IPTV functional unit, it is characterized in that, also comprises wired TV receiving system, satellite television receiving system and terrestrial television receiving system; Described cable TV receiving system, satellite television receiving system and terrestrial television receiving system are connected with the IPTV functional unit by control system.
2. set-top box according to claim 1 is characterized in that, described control system adopts the SoC chip to constitute.
3. set-top box according to claim 2 is characterized in that, the embedded (SuSE) Linux OS of described control system.
4. according to claim 1,2 or 3 described set-top box, it is characterized in that, described IPTV functional unit MPEG compatible 4, H.264, AVS, VC-1 decoding standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720078760XU CN201042042Y (en) | 2007-03-13 | 2007-03-13 | Stb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720078760XU CN201042042Y (en) | 2007-03-13 | 2007-03-13 | Stb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042042Y true CN201042042Y (en) | 2008-03-26 |
Family
ID=39253753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720078760XU Expired - Fee Related CN201042042Y (en) | 2007-03-13 | 2007-03-13 | Stb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042042Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325268A (en) * | 2011-09-06 | 2012-01-18 | 四川金网通电子科技有限公司 | Method for realizing regional control on live broadcasting satellite and national standard T dual-mode set top box |
| CN101771663B (en) * | 2008-12-29 | 2013-03-20 | 上海华虹集成电路有限责任公司 | Verification system based on UCPS protocol |
| CN103067747A (en) * | 2011-10-20 | 2013-04-24 | 安美世纪（北京）科技有限公司 | Interactive digital TV display mode |
| CN103237241A (en) * | 2013-05-09 | 2013-08-07 | 无锡北斗星通信息科技有限公司 | Double-mode television (TV) capable of receiving ground TV signals and network TV signals |
| CN107566876A (en) * | 2017-09-26 | 2018-01-09 | 深圳佳力拓科技有限公司 | Set-top-box system that is a kind of while supporting multisignal source |
-
2007
- 2007-03-13 CN CNU200720078760XU patent/CN201042042Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771663B (en) * | 2008-12-29 | 2013-03-20 | 上海华虹集成电路有限责任公司 | Verification system based on UCPS protocol |
| CN102325268A (en) * | 2011-09-06 | 2012-01-18 | 四川金网通电子科技有限公司 | Method for realizing regional control on live broadcasting satellite and national standard T dual-mode set top box |
| CN102325268B (en) * | 2011-09-06 | 2015-07-08 | 四川金网通电子科技有限公司 | Method for realizing regional control on live broadcasting satellite and national standard T dual-mode set top box |
| CN103067747A (en) * | 2011-10-20 | 2013-04-24 | 安美世纪（北京）科技有限公司 | Interactive digital TV display mode |
| CN103237241A (en) * | 2013-05-09 | 2013-08-07 | 无锡北斗星通信息科技有限公司 | Double-mode television (TV) capable of receiving ground TV signals and network TV signals |
| CN107566876A (en) * | 2017-09-26 | 2018-01-09 | 深圳佳力拓科技有限公司 | Set-top-box system that is a kind of while supporting multisignal source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20160313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |